<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">北京</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" v-for="item of hot" :key="item.id">
						<div class="button" >{{item.name}}</div>
					</div>
				</div>
			</div>
			<div class="area" v-for="(item,key) of cities":key="key" :ref="key">
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list">
					<div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id">{{innerItem.name}}</div>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
	name: 'Citylist',
	props: {
		hot:Array,
		cities: Object,
		letter: String
	},
	mounted () {
		this.scroll = new Bscroll(this.$refs.wrapper)
	},
	watch:{
		letter () {
			if (this.letter) {
				const element = this.$refs[this.letter][0]
				this.scroll.scrollToElement(element)	
			}
		}
	}
}
</script>

<style lang="stylus" scoped>
	@import '~styles/varidles.styl'
	.border-topbottom{
		&:before {
			border-color: #ccc;
		}
		&:after {
			border-color: #ccc;
		}
	}
	.border-bottom{
		&:before {
			border-color: #000000;
		}
	}
	.list{
		overflow: hidden;
		position:absolute;
		top: 1.58rem;
		left: 0;
		right: 0;
		bottom: 0;
	}
	.title{
		line-height: .54rem;
		background: #eee;
		padding-left: .2rem;
		color: #666;
		font-size: .26rem;
	}
	.button-list{
		overflow: hidden;
		padding: .1rem .6rem .1rem .1rem;
	}
	.button-wrapper{
		float: left;
		width: 33.33%;
	}
	.button{
		margin: .1rem;
		padding: .1rem 0;
		text-align: center;
		border: .02rem solid #ccc;
		border-radius: .06rem;
	}
	.item-list .item{
		line-height: .76rem;
		padding-left: .2rem;
		}
</style>